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HUNAN KEREY BIOTECHNOLOGY CO LTD

Overview
  • Total Patents
    17
  • GoodIP Patent Rank
    141,376
About

HUNAN KEREY BIOTECHNOLOGY CO LTD has a total of 17 patent applications. Its first patent ever was published in 2010. It filed its patents most often in China. Its main competitors in its focus markets organic fine chemistry are AMERICAN SYNTEX INC, STEELE CHEM CO LTD and REICHSTEIN TADEUS DR.

Patent filings in countries

World map showing HUNAN KEREY BIOTECHNOLOGY CO LTDs patent filings in countries
# Country Total Patents
#1 China 17

Patent filings per year

Chart showing HUNAN KEREY BIOTECHNOLOGY CO LTDs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

# Technology
#1 Steroids

Top inventors

# Name Total Patents
#1 Zuo Qianjin 13
#2 Gan Hongxing 11
#3 Xie Laibin 11
#4 Yang Xiangxin 4
#5 Wu Laixi 4
#6 Hu Aiguo 3
#7 Qianjin Zuo 1
#8 Laixi Wu 1
#9 Zeng Quan 1
#10 Tang Xiaohai 1

Latest patents

Publication Filing date Title
CN104447929A Method for synthesizing 3-carbonyl-4-androstene-17beta carboxylic acid
CN104370994A Method for preparing 3-carbonyl-4-aza-5-androstene-17 beta carboxylic acid derivative from mother solution reclaimed materials of hydrogenation reaction
CN104370993A Method for synthesizing 3-carbonyl-4-azaandrost-17beta derivative
CN104327146A Novel method of synthesizing 17 alpha-hydroxyl progesterone
CN104370995A Preparation method of androstane-17beta-N-(2,5-bis (trifluoromethyl)) benzamide
CN104355993A Preparation method of A-nor-3, 5-cracking-androstane-5 -keto-3, 17-diacid
CN104327144A 3-hydroxy-5-androstene-17 beta carboxylate preparation method
CN104311626A Preparation method for 3-carbonyl-4-aza-androstane-17 beta carboxylic acid
CN104262442A Preparation method for progestin
CN104277089A Preparation method of androst-17 beta-carboxylic acid
CN104151393A Preparation method of 3-carbonyl-4-aza-5-androstene-17beta derivative
CN104119415A Method for preparing 17alpha-hydroxyprogesteron
CN103694296A Preparation method of DHEA (dehydroepiandrosterone) intermediate 3 beta- acetoxyl- androstane-3, 5- diene-17-ketone
CN102241729A Synthetic method of 3-carbonyl-4-aza-5 alpha-androstane-17 beta-carboxylic acid methyl ester
CN102241589A Synthetic method of A-nor-3,5-cracking-androstane-5-ketone-3,17 beta-diacid
CN102212099A Synthesis method for dehydroepiandrosterone
CN102010308A Preparation method of 8-hydroxyl caprylaldehyde of intermediate for synchronizing royaljelly acid